[go: up one dir, main page]

EP0408912A1 - Method and device for production of paperstacks - Google Patents

Method and device for production of paperstacks Download PDF

Info

Publication number
EP0408912A1
EP0408912A1 EP90111612A EP90111612A EP0408912A1 EP 0408912 A1 EP0408912 A1 EP 0408912A1 EP 90111612 A EP90111612 A EP 90111612A EP 90111612 A EP90111612 A EP 90111612A EP 0408912 A1 EP0408912 A1 EP 0408912A1
Authority
EP
European Patent Office
Prior art keywords
roller
suction
gripping element
laying
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90111612A
Other languages
German (de)
French (fr)
Other versions
EP0408912B1 (en
Inventor
Engelbert Rottmann
Gilbert Dipl.-Ing. Hauschild
Christian Riedel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0408912A1 publication Critical patent/EP0408912A1/en
Application granted granted Critical
Publication of EP0408912B1 publication Critical patent/EP0408912B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/24—Interfolding sheets, e.g. cigarette or toilet papers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/16—Rotary folders
    • B65H45/162—Rotary folders with folding jaw cylinders

Definitions

  • the invention relates to a method and a device for producing U-shaped or zigzag-folded and overlapping stacked single sheets or sheets, in particular made of absorbent paper with the aid of two sets of rolls for two material webs, two arranged on the stack to be formed and interacting during the formation of the stack as well as during the formation of folds and for each material web at least one knife roller with a separating knife and transport and pull rollers as well as a deflection roller are provided, which are arranged and driven in a machine frame.
  • Suction rollers which are not able to produce exact folded edges, can be used to lay down the sheets or papers that are present in a sequence of separated single sheets or papers exactly to form a stack, with the fold edges then forming due to the dynamic pressure in the stack.
  • Disadvantages here are the relatively inaccurate fold edge formation, the mostly high height of the stacks and the limited possibility of immediately recognizing production errors.
  • the invention is therefore based on the object of providing a method and a device of the type mentioned which allow reliable and exact fold formation and furthermore the storage of folded single sheets in a mutually interlocking stack position. This should also be possible if the single sheets are at a short distance from each other during processing.
  • each laying roller has at least one folding and folding cutter and at least one movable gripping element and that at least one suction element is arranged on the gripping element and next to the gripping element in each case on the circumference of the laying roller.
  • the movable gripping element is arranged in a recess which is open toward the circumference of the laying roller and, together with a trailing or leading, fixed edge of the laying roller, forms a gripping gap.
  • the gripping gap and the suction element arranged directly in front of or behind it and on the movable gripping element or on the fixed edge are designed such that both the single sheet to be folded or folded and the inner ends of the two adjacent single sheets are secure and can be reliably gripped. With the help of the suction elements, this is also ensured if the ends of the inner sheets are at a short distance during processing.
  • the single sheets are gripped when the folding and folding blade on the other laying roller has pressed the single sheet into the gripping gap and the suction elements fix the exact position and position of the single sheet to be folded and folded and the ends of the adjacent single sheets lying in it. As this enables good fold formation, guidance and safe transport of the single sheets, it is also possible to work at a high working speed.
  • a device 1 for U-shaped or zigzag-shaped folding and for the production of folded cloths which are overlapping or intermeshing and / or interleaved in a stack 2 comprises, according to FIG. 1, two sets of rolls 4 and 5 for one each Material web 6, 7 and each one, in the stack formation cooperating depositing roller 8, 9 directly at the stacking point 10.
  • Each roller set 4, 5 has, in addition to the depositing roller 8, 9, at least one knife roller 11 with a separating knife 12 and transport, pulling and / or deflecting rollers 13, 14. All rollers are stored in a machine frame 15 (Fig. 3). The respective direction of rotation of the rollers results from the arrows in FIG. 1.
  • the U-shaped or zigzag-shaped depositing of the individual sheets 3 and the insertion of the next individual sheet 3 between the parts or halves of the single sheet 3 to be folded is carried out with the aid of the two depositing rollers 8, 9, each of which is arranged on the one depositing roller 8 and 9 kink and rebate cutting 16 and on the other laying roller 9 and 8 assigned and initially open gripping gaps 17 and gripping elements 18.
  • the endless web of material 6 or 7 is first cut into individual sheets 3 with the aid of the separating knife 12 on the cutter roller 11, then the individual sheets 3 are separated somewhat, for example up to 5 mm, and then they become the laying roller 8 or 9 in this way supplied that a single sheet 3 transported from the deposit roller 8 to the stacking point 10 by half a sheet length or by a partial length to one of the other deposit roller 9 fed single sheet 3a is offset.
  • the leading end 19 of the single sheet 3a meets at the nip 57 of the two laying rollers 8, 9 on the center of the single sheet 3 fed by the other laying roller 8, provided that the single sheet has a fold.
  • the leading end 19 of the single sheet 3a at the nip 57 also meets a fold to be formed in the other single sheet 3.
  • the single sheet 3a on the depositing roller 9 extends or extends as well as the single sheet 3 on the depositing roller 8 in the corresponding working position from a folding and folding cutter 16 to the next folding and folding cutter 20 in the circumferential direction and afterwards.
  • the gripping gaps 17 and gripping elements 18 are arranged on the two laying rollers 8 and 9, in each case halfway between two folding and folding blades 16 and 20 or 16 and 21 or 20 and 21.
  • a single sheet 3 for example located on the depositing roller 8, in the position according to FIG. 1 is pressed by the folding and folding blade 16 of the depositing roller 9 into the gripping gap 17 of the depositing roller 8 and then there with the aid of the gripping element 18 positionally fixed, the single sheet 3 being gripped on the laying roller 8 in the middle with simultaneous formation of folds or folds.
  • the leading end 19 of the next single sheet 3a transported on the deposit roller 9 to the stacking point 10 and the trailing end 22 of the last, already deposited single sheet 3 by means of suction elements 23, 24 to be explained in more detail and acting through the folded single sheet 3.
  • the suction elements 23, 24 release the leading end 19 of the single sheet 3a and the trailing end of the last single sheet 3 that has already been deposited.
  • the gripping gap 17 and the gripping element 18 reach the upper left edge of the stack 2, the gripping element 18 releases the single sheet 3 packed in the middle.
  • the folding and folding cutting edge 16 is on the laying roller 8 in the area of the narrowest point of the roller gap 57 and presses the single sheet 3a into the gripping gap 17, whereupon the latter closes by pivoting the gripping element 18.
  • the laying roller 9 which releases the single sheet 3a as soon as the gripping element 18 is at the upper right end of the stack 2.
  • the formation of folds and folds as well as the storage in the stack takes place in basically the same manner for all further individual sheets 3 and 3a which are transported to the stacking point 10.
  • At least one suction element 23 is arranged on the gripping element 18 and another suction element 24 is arranged directly next to the gripping element 18 on the circumference 25 of the laying roller 8, 9.
  • Another suction element 26 is located immediately next to and in the running direction of the laying rollers 8, 9 behind each articulated and folding cutter 16, 20 and 21. All suction elements 23, 24 and 26 are suction openings located in the contour of the laying rollers 8, 9, to which individual suction channels 27, each of which can be controlled separately, in the gripping elements 18 and suction channels 28 and 29 in the laying rollers 8, 9 lead.
  • a suction air control valve 30 (Fig.
  • the gripping element 18 is arranged in a recess 31 of the laying roller 8, 9 which is open towards the periphery 25. It is pivotally mounted and has the shape of a flap which has a clamping piece 32 with a clamping surface 33 at its free end. Relative to the direction of rotation of the laying rollers 8, 9, the clamping surfaces 33 are arranged in a trailing manner on the clamping pieces. So that the gripping elements 18 can be effective, their clamping surfaces 33 are each assigned a counter surface in the form of a contact surface 24 rigidly arranged on the depositing roller 8, 9. When the gripping element 18 is open, the gripping gap 17 is located in each case between the clamping piece 32 or its clamping surface 33 and the contact surface 34 on the laying roller 8, 9.
  • the gripping element 18 is arranged on a pivot axis 35 which is used to control the Pivotal movement has a control lever 36.
  • the control lever 36 carries a guide roller 37 and a stationary control cam 38 is also provided, with the aid of which the pivoting movements of the pivot axis 35 or the gripping element 18 are positively controlled.
  • the control cam 38 is finally located on a cam carrier 39 which is arranged outside the depositing rollers 8, 9 (FIG. 3).
  • each suction air duct 27 leads from the suction opening located in the outer surface 40 of each laying roller 8, 9 through the respective gripping element 18 and then through its pivot axis 35 to the suction air control valve 30.
  • the other suction channels 28 and 29 are connected to the suction air control valve 30 or its rotating control disk 44 through further bores 42 and 43.
  • the bores 41, 42 and 43 are associated with control windows 41 ', 42' and 43 'in an air-conducting connection.
  • the bores 42 and 43 run between the actual roller body and the control disk 44 in extension pieces 42 zu simplifyen and 43 ⁇ assigned to them.
  • the suction air control valve 30 has a stationary control disc 45 in which there are suction air control channels 47, 58 and 59 and channels 471 and 58 'for atmospheric pressure compensation.
  • the suction air control channels 47, 58 and 59 are by means of suction nozzle 46 and 46 'connected to a suction air source, not shown in the figures.
  • the two control disks 44 and 45 cause the cyclical generation and cancellation of the suction air when the control disk 44 rotates, the control window 41 ', 42' and 43 'of the control channels 47 and 47' and 58, 58 'and 59, 58' move past.
  • the suction air control valve 30 is arranged concentrically by means of a bearing 30 '(Fig. 4) to the drive and bearing shaft 48 of the laying roller 8, 9 and secured in rotation with the help of a bolt 49 on the machine frame 15 (Fig. 3).
  • Ball bearings 50 are used for mounting the drive and bearing shaft 48 in the machine frame 15 and a gear 51 is provided for driving, as can also be seen in FIG. 3.
  • the gripping element 18 or its pivoting and control lever 36 is acted upon by a spring 52 which presses the gripping element 18 into the closed position.
  • the control cam 38 is used, which, via the guide roller 37 and the control lever 36, pivots the gripping element 18 with its clamping piece 32 into the open position when the gripping element 18 of the one laying roller 8 or 9 and the folding and folding cutter 16 the other depositing roller 8 or 9 are in the area of the nip 57 or its narrowest point, as shown in Figure 2.
  • the part of the control cam 38 which causes the opening extends only over a relatively short arc in the area of the roller gap 57 and the lateral, upper edge of the stack 2, as is also shown in FIG. 2.
  • the storage of the laying roller 8, 9 in the machine frame 15 takes place largely symmetrically according to FIG.
  • the same also applies to the suction air control, so that one suction air control valve 30 is expediently arranged axially at each end of the laying roller 8, 9 (FIG. 3).
  • the two laying rollers 8, 9 each have a plurality of gripping elements 18 and kinking and folding blades 16 axially next to one another. In between there are grooves or grooves 53, so that the laying rollers 8, 9 are slightly comb-shaped as a result.
  • the gripping gap 17 extends radially. The same applies to the clamping surfaces 33 and the contact surfaces 34 on the laying rollers 8, 9.
  • the kinking and folding blades 16, 20 and 21 are mounted in the laying rollers 8, 9 by means of elastic holders 60.
  • each laying roller 8 or 9 is fed a material web prepared by separating cuts or single sheets 3, 3a are fed.
  • a suction element 26 is required in each of the two laying rollers 8, 9 behind the kinking and folding blades 16, 20, 21.
  • Both exemplary embodiments work according to the same method.
  • the result of this is that one single sheet with the location of the fold to be formed and two other single sheets with their ends pressed at the same point under lateral guidance from an original direction of movement and then fixed there with the formation of folds, the ends of the a single sheet lies in the fold of the other single sheet and that single sheets are fixed mechanically and with suction air.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

The invention relates to a method and device (1) for production of individual sheets (3) or handkerchiefs, in particular of absorbent paper, folded in a U or zig-zag shape and deposited overlapping and touching one interleaved in a stack (2), by means of two sets of rolls (4, 5) for two webs (6, 7) of fabric, two delivery rollers (8, 9) arranged on the stack (2) to be formed and cooperating in the stack formation and fold formation and for each web of fabric at least in each case one cutter block (11) having a ripping knife (12) as well as transport and drawing rollers (13) and a deflection roller (14) being provided which are arranged and driven in an engine frame. <??>The essence of the invention lies in the fact that each delivery roller (8, 9) has at least one bending and folding edge (20) and at least one moving gripping element (18) and that furthermore in each case at least one suction element (23, 24) is arranged on the gripping element (18) and alongside the gripping element (18) or the bending and folding edge (20) in each case on the circumference of the delivery roller (8, 9). <IMAGE>

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Herstellen von U- bzw. zick-zack-förmig gefalteten und überlappend in einem Stapel ineinander greifend abge­legten Einzelblättern bzw. von Tüchern, insbesondere aus saugfähigem Papier mit Hilfe von zwei Rollensätzen für zwei Materialbahnen, wobei zwei an dem zu bildenden Stapel angeordnete und bei der Stapelbildung sowie bei der Falzbildung zusammenwirkende Ablegewalzen und für jede Materialbahn mindestens je eine Messerwalze mit einem Trennmesser sowie Transport- und Zugwalzen sowie eine Umlenkwalze vorgesehen sind, die in einem Maschinen­rahmen angeordnet sowie angetrieben sind.The invention relates to a method and a device for producing U-shaped or zigzag-folded and overlapping stacked single sheets or sheets, in particular made of absorbent paper with the aid of two sets of rolls for two material webs, two arranged on the stack to be formed and interacting during the formation of the stack as well as during the formation of folds and for each material web at least one knife roller with a separating knife and transport and pull rollers as well as a deflection roller are provided, which are arranged and driven in a machine frame.

Vorrichtungen der genannten Art zum U- bzw. Zick-Zack-­Falten und zum Herstellen von Stapeln aus Tüchern und saugfähigen Papieren sind seit langem bekannt. Hierbei werden zwei vorbereitete Materialbahnen, die jeweils aus einer ununterbrochenen Folge von gleich langen, jedoch von einander getrennten oder durch eine Perforation an­einander hängenden Tüchern bestehen, zusammengeführt und zick-zack-förmig gefaltet. Die Tücher der Bahnen sind da­bei zweckmäßigerweise um eine halbe Tuchlänge gegenein­ander versetzt, so daß nach dem Falten in dem Falz des Tuches einer Bahn jeweils ein Tuchende und ein Tuchanfang von benachbarten Tüchern der anderen Materialbahn zu lie­gen kommen.Devices of the type mentioned for U or zigzag folding and for producing stacks from towels and absorbent papers have been known for a long time. Here two prepared material webs, each consisting of an uninterrupted sequence of cloths of the same length, but separated from one another or attached to one another by a perforation, are brought together and folded in a zigzag shape. The sheets of the webs are expediently offset from each other by half a length of fabric, so that after folding in the fold of the fabric of one web, one end of the fabric and one beginning of the fabric of adjacent fabrics of the other material web come to rest.

Als Ablegewalzen weisen diese Vorrichtungen z.B. Saugwal­zen auf, welche zwar nicht in der Lage sind, exakte Falz­kanten zu erzeugen, jedoch lassen sich die Tücher bzw. Papiere, die in einer Folge von abgetrennten Einzeltü­chern bzw. Papieren vorliegen, mit ihrer Hilfe exakt zu einem Stapel ablegen, wobei dann die Falzkantenbildung durch den Staudruck im Stapel erfolgt. Nachteilig ist hierbei die relativ ungenaue Falzkantenbildung, die meist große Höhe der Stapel sowie die geringe Möglichkeit, Pro­duktionsfehler sofort zu erkennen.As laying rollers, these devices have e.g. Suction rollers, which are not able to produce exact folded edges, can be used to lay down the sheets or papers that are present in a sequence of separated single sheets or papers exactly to form a stack, with the fold edges then forming due to the dynamic pressure in the stack. Disadvantages here are the relatively inaccurate fold edge formation, the mostly high height of the stacks and the limited possibility of immediately recognizing production errors.

Andere Vorrichtungen zur Herstellung von Stapeln aus ge­falteten und zick-zack-förmig ineinander gelegten Tüchern und Papieren weisen Ablegewalzen mit Falzklappen auf. Mit Hilfe dieser Falzklappen wird die jeweilige Materialbahn gegriffen und eine Falzkante erzeugt. Jedoch sind die beim Greifen beteiligten Teile der Ablegewalze nur in der Lage, während der Falzbildung das Material einer einzigen Materiallage sicher zu erfassen. Dies hat zur Folge, daß insbesondere die bei der Zick-Zack-Lage innen liegende Schicht nicht sicher erfaßt werden kann und somit zwar ein sicherer und guter Transport jeweils einer Material­bahn gewährleistet ist, nicht jedoch auch die Handhabung der zweiten Materialbahn. Deshalb sind Vorrichtungen dieser Art nur in der Lage, endlose sowie perforierte Materialbahnen zu verarbeiten und können nicht nur Verar­beitung von Materialbahnen verwendet werden, die aus ei­ner Folge von abgetrennten Einzelblättern bestehen. Dies gilt insbesondere auch deshalb, weil die Einzelblätter aus fertigungstechnischen Gründen während der Verarbei­tung einen geringen Abstand von bis zu 5 mm aufweisen müssen.Other devices for the production of stacks from folded and zigzag-like interlaced sheets and papers have laying rollers with folding flaps. With the help of these folding flaps, the respective material web is gripped and a folded edge is created. However, the parts of the laying roller involved in gripping are only able to reliably grasp the material of a single material layer during the fold formation. This has the consequence that in particular the layer lying inside in the zigzag layer cannot be reliably detected and thus a safe and good transport of one material web is guaranteed, but not also the handling of the second material web. Therefore, devices of this type are only able to process endless and perforated material webs and can not only be used to process material webs that consist of a sequence of separated single sheets. This applies in particular because the individual sheets must be at a short distance of up to 5 mm during processing for manufacturing reasons.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Ver­fahren und eine Vorrichtung der genannten Art zu schaf­fen, die eine sichere und exakte Falzbildung und ferner die Ablage von gefalteten Einzelblättern in wechselsei­tiger, ineinander greifender Stapellage gestattet. Dies soll ferner auch dann möglich sein, wenn sich die Einzel­blätter während der Verarbeitung in einem geringen Ab­stand zueinander befinden.The invention is therefore based on the object of providing a method and a device of the type mentioned which allow reliable and exact fold formation and furthermore the storage of folded single sheets in a mutually interlocking stack position. This should also be possible if the single sheets are at a short distance from each other during processing.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, daß jede Ablegewalze mindestens eine Knick- und Falzschneide und mindestens ein bewegliches Greifelement aufweist und daß ferner je mindestens ein Saugelement am Greifelement und neben dem Greifelement jeweils am Umfang der Ablege­walze angeordnet ist.To achieve this object, the invention provides that each laying roller has at least one folding and folding cutter and at least one movable gripping element and that at least one suction element is arranged on the gripping element and next to the gripping element in each case on the circumference of the laying roller.

Das bewegliche Greifelement ist in einer zum Umfang der Ablegewalze hin offenen Ausnehmung angeordnet und bildet mit einer nachlaufenden oder vorlaufenden, festen Kante der Ablegewalze zusammen einen Greifspalt. Der Greifspalt und die unmittelbar davor bzw. dahinter und am beweg­lichen Greifelement bzw. an der festen Kante angeordneten Saugelementes sind so gestaltet, daß jeweils sowohl das zu faltende bzw. zu knickende Einzelblatt als auch die in dessen inneren liegenden Enden der beiden benachbarten Einzelblätter sicher und zuverlässig gegriffen werden können. Mit Hilfe der Saugelemente ist dies ferner auch dann gewährleistet, wenn die Enden der innen liegenden Blätter sich in einem geringen Abstand bei der Verarbei­tung befinden.The movable gripping element is arranged in a recess which is open toward the circumference of the laying roller and, together with a trailing or leading, fixed edge of the laying roller, forms a gripping gap. The gripping gap and the suction element arranged directly in front of or behind it and on the movable gripping element or on the fixed edge are designed such that both the single sheet to be folded or folded and the inner ends of the two adjacent single sheets are secure and can be reliably gripped. With the help of the suction elements, this is also ensured if the ends of the inner sheets are at a short distance during processing.

Die Einzelblätter werden gegriffen, wenn die Knick- und Falzschneide auf der jeweils anderen Ablegewalze das Ein­zelblatt in den Greifspalt gedrückt hat und die Saugele­mente die genaue Lage und Position des abzuknickenden und zu faltenden Einzelblattes und der in ihm liegenden Enden der benachbarten Einzelblätter fixieren. Da somit eine gute Falzbildung, Führung und ein sicherer Transport der Einzelblätter möglich ist, kann auch mit einer hohen Ar­beitsgeschwindigkeit gearbeitet werden.The single sheets are gripped when the folding and folding blade on the other laying roller has pressed the single sheet into the gripping gap and the suction elements fix the exact position and position of the single sheet to be folded and folded and the ends of the adjacent single sheets lying in it. As this enables good fold formation, guidance and safe transport of the single sheets, it is also possible to work at a high working speed.

Weitere Merkmale der Erfindung gehen aus der Beschreibung und den Ansprüchen im Zusammenhang mit der Zeichnung her­vor.Further features of the invention emerge from the description and the claims in connection with the drawing.

Die Erfindung wird nachstehend anhand eines Ausführungs­beispieles, das in der Zeichnung prinzipmäßig dargestellt ist, näher beschrieben. Dabei zeigen:

  • Fig. 1: eine Prinzipskizze der Rol­lensätze für die beiden Ma­terialbahnen im Bereich der Stapelstelle;
  • Fig. 2: in größerem Maßstab sowie ab­gebrochen die beiden Ablege­walzen im Bereich der Stapel­stelle;
  • Fig. 3: eine Prinzipskizze der Vor­richtung in Draufsicht;
  • Fig. 4: eine Ansicht der stationären Steuerscheibe des Saugluft­steuerventils in Richtung der Pfeile IV/IV in Fig, 3;
  • Fig. 5: eine Ansicht der rotierenden Steuerscheibe in Richtung der Pfeile V/V in Fig. 3 und
  • Fig. 6: eine Prinzipskizze einer ab­gewandelten Rollenanordnung, bei der zwei vorbereitete Ma­terialbahnen auf einer ge­meinsamen Walze zusammenge­führt werden und danach als Doppelbahn den beiden Ablege­walzen zugeführt werden.
The invention is described below with reference to an embodiment which is shown in principle in the drawing. Show:
  • 1: a schematic diagram of the roller sets for the two material webs in the area of the stacking point;
  • 2: on a larger scale and broken off the two depositing rollers in the area of the stacking point;
  • 3 shows a schematic diagram of the device in plan view;
  • 4 shows a view of the stationary control disk of the suction air control valve in the direction of arrows IV / IV in FIG. 3;
  • Fig. 5: a view of the rotating control disc in the direction of arrows V / V in Fig. 3 and
  • 6: a schematic diagram of a modified roller arrangement, in which two prepared material webs are brought together on a common roller and are then fed as a double web to the two laying rollers.

Eine Vorrichtung 1 zum U- bzw. zick-zack-förmigen Falten und zum Herstellen von in einem Stapel 2 überlappend bzw. ineinander greifend abgelegten, gefalteten Tüchern bzw. von Einzelblättern 3 umfaßt gemäß Fig. 1 zwei Rollensätze 4 bzw. 5 für je eine Materialbahn 6, 7 und je eine, bei der Stapelbildung zusammenwirkende Ablegewalze 8, 9 un­mittelbar an der Stapelstelle 10. Jeder Rollensatz 4, 5 weist ausser der Ablegewalze 8, 9 mindestens eine Messer­walze 11 mit einer Trennmesser 12 sowie Transport-, Zug- und/oder Umlenkwalzen 13, 14 auf. Sämtliche Walzen sind in einem Maschinengestell 15 (Fig. 3) gelagert. Die je­weilige Drehrichtung der Walzen ergibt sich aufgrund der Pfeile in Fig. 1.A device 1 for U-shaped or zigzag-shaped folding and for the production of folded cloths which are overlapping or intermeshing and / or interleaved in a stack 2 comprises, according to FIG. 1, two sets of rolls 4 and 5 for one each Material web 6, 7 and each one, in the stack formation cooperating depositing roller 8, 9 directly at the stacking point 10. Each roller set 4, 5 has, in addition to the depositing roller 8, 9, at least one knife roller 11 with a separating knife 12 and transport, pulling and / or deflecting rollers 13, 14. All rollers are stored in a machine frame 15 (Fig. 3). The respective direction of rotation of the rollers results from the arrows in FIG. 1.

Die U- bzw. zick-zack-förmige Ablage der Einzelblätter 3 und das Einführen des jeweils nächsten Einzelblattes 3 zwischen die Teile bzw. Hälften des zu faltenden Ein­zelblattes 3 erfolgt mit Hilfe der beiden Ablegewalzen 8, 9, die hierzu jeweils auf der einen Ablegewalze 8 bzw. 9 Knick- und Falzschneiden 16 und auf der jeweils anderen Ablegewalze 9 bzw. 8 zugeordnete und zunächst offene Greifspalten 17 und Greifelemente 18 aufweisen. Im Be­trieb wird die endlose Materialbahn 6 bzw. 7 zunächst mit Hilfe des Trennmessers 12 auf der Messerwalze 11 in Ein­zelblätter 3 geschnitten, danach werden die Einzelblätter 3 etwas, beispielsweise bis zu 5 mm voneinander entfernt und sodann werden sie der Ablegewalze 8 bzw. 9 derart zu­geführt, daß ein von der Ablegewalze 8 zur Stapelstelle 10 transportiertes Einzelblatt 3 um eine halbe Blattlänge bzw. um eine Teillänge zu einem von der anderen Ablege­ walze 9 zugeführten Einzelblatt 3a versetzt ist. Das vor­laufende Ende 19 des Einzelblattes 3a trifft am Walzen­spalt 57 der beiden Ablegewalzen 8, 9 auf die Mitte des von der anderen Ablegewalze 8 zugeführten Einzelblattes 3, sofern das Einzelblatt einen Falz aufweist. Wenn das Einzelblatt 3 zwei, entgegengesetzt gerichtete Knickstel­len oder Falze oder noch mehr Knickstellen bzw. Falze er­hält, so trifft das vorlaufende Ende 19 des Einzelblattes 3a am Walzenspalt 57 ebenfalls auf eine im anderen Ein­zelblatt 3 zu bildende Knickstelle. Dabei erstreckt sich bzw. reicht das Einzelblatt 3a auf der Ablegewalze 9 ebenso wie das Einzelbatt 3 auf der Ablegewalze 8 in der entsprechenden Arbeitsposition von einer Knick- und Falz­schneide 16 bis zu der in Umfangsrichtung sowie nachlau­fend nächsten Knick- und Falzschneide 20.The U-shaped or zigzag-shaped depositing of the individual sheets 3 and the insertion of the next individual sheet 3 between the parts or halves of the single sheet 3 to be folded is carried out with the aid of the two depositing rollers 8, 9, each of which is arranged on the one depositing roller 8 and 9 kink and rebate cutting 16 and on the other laying roller 9 and 8 assigned and initially open gripping gaps 17 and gripping elements 18. In operation, the endless web of material 6 or 7 is first cut into individual sheets 3 with the aid of the separating knife 12 on the cutter roller 11, then the individual sheets 3 are separated somewhat, for example up to 5 mm, and then they become the laying roller 8 or 9 in this way supplied that a single sheet 3 transported from the deposit roller 8 to the stacking point 10 by half a sheet length or by a partial length to one of the other deposit roller 9 fed single sheet 3a is offset. The leading end 19 of the single sheet 3a meets at the nip 57 of the two laying rollers 8, 9 on the center of the single sheet 3 fed by the other laying roller 8, provided that the single sheet has a fold. If the single sheet 3 receives two oppositely directed folds or folds or even more folds or folds, then the leading end 19 of the single sheet 3a at the nip 57 also meets a fold to be formed in the other single sheet 3. The single sheet 3a on the depositing roller 9 extends or extends as well as the single sheet 3 on the depositing roller 8 in the corresponding working position from a folding and folding cutter 16 to the next folding and folding cutter 20 in the circumferential direction and afterwards.

Die Greifspalte 17 und Greifelemente 18 sind auf den beiden Ablegewalzen 8 und 9 jeweils auf der halben Länge zwischen zwei Knick- und Falzschnei­den 16 und 20 bzw. 16 und 21 bzw. 20 und 21 angeordnet. Bei der Knick- und Falzbildung wird daher ein z.B. auf der Ablegewalze 8 befindliches Einzelblatt 3 in der Posi­tion gemäß Fig. 1 von der Knick- und Falzschneide 16 der Ablegewalze 9 in den Greifspalt 17 der Ablegewalze 8 ge­drückt und dann dort mit Hilfe des Greifelementes 18 lagemäßige fixiert, wobei bei gleichzeitiger Knick- bzw. Falzbildung das Einzelblatt 3 auf der Ablegewalze 8 mittig ergriffen wird. Ferner werden dabei das vorlaufen­de Ende 19 des nächsten, auf der Ablegewalze 9 zur Sta­pelstelle 10 transportierten Einzelblattes 3a und das nachlaufende Ende 22 des letzten, bereits abgelegten Ein­zelblattes 3 mittels noch näher zu erläuternden und durch das gefalzte Einzelblatt 3 hindurch wirkenden Saugele­menten 23, 24 erfaßt. Bei der Weiterbewegung der Ablege­walze 8 zum Stapel 2 geben die Saugelemente 23, 24 das vorlaufende Ende 19 des Einzelblattes 3a und das nachlau­fende Ende des letzten, bereits abgelegten Einzelblattes 3 frei. Erreicht der Greifspalt 17 und das Greifelement 18 den linken, oberen Rand des Stapels 2, gibt das Greif­element 18 das mittig gepackte Einzelblatt 3 wieder frei. Inzwischen ist die Knick- und Falzschneide 16 auf der Ab­legewalze 8 im Bereich der engsten Stelle des Walzenspal­tes 57 und drückt das Einzelblatt 3a in den Greifspalt 17, woraufhin sich dieser durch Verschwenken des Greif­elementes 18 schließt. Nunmehr erfolgt derselbe Arbeits­vorgang wie beschrieben mit der Ablegewalze 9, die das Einzelblatt 3a freigibt, sobald sich das Greifelement 18 am rechten, oberen Ende des Stapels 2 befindet. Die Knick-und Falzbildung sowie die Ablage im Stapel erfolgt bei allen weiteren, zur Stapelstelle 10 transportieren Einzelblättern 3 und 3a in grundsätzlich gleicher Art und Weise.The gripping gaps 17 and gripping elements 18 are arranged on the two laying rollers 8 and 9, in each case halfway between two folding and folding blades 16 and 20 or 16 and 21 or 20 and 21. In the formation of folds and folds, therefore, a single sheet 3, for example located on the depositing roller 8, in the position according to FIG. 1 is pressed by the folding and folding blade 16 of the depositing roller 9 into the gripping gap 17 of the depositing roller 8 and then there with the aid of the gripping element 18 positionally fixed, the single sheet 3 being gripped on the laying roller 8 in the middle with simultaneous formation of folds or folds. Furthermore, the leading end 19 of the next single sheet 3a transported on the deposit roller 9 to the stacking point 10 and the trailing end 22 of the last, already deposited single sheet 3 by means of suction elements 23, 24 to be explained in more detail and acting through the folded single sheet 3. When the depositing roller 8 moves further to the stack 2, the suction elements 23, 24 release the leading end 19 of the single sheet 3a and the trailing end of the last single sheet 3 that has already been deposited. When the gripping gap 17 and the gripping element 18 reach the upper left edge of the stack 2, the gripping element 18 releases the single sheet 3 packed in the middle. In the meantime, the folding and folding cutting edge 16 is on the laying roller 8 in the area of the narrowest point of the roller gap 57 and presses the single sheet 3a into the gripping gap 17, whereupon the latter closes by pivoting the gripping element 18. Now the same operation as described is carried out with the laying roller 9, which releases the single sheet 3a as soon as the gripping element 18 is at the upper right end of the stack 2. The formation of folds and folds as well as the storage in the stack takes place in basically the same manner for all further individual sheets 3 and 3a which are transported to the stacking point 10.

Zur Führung und um einen sicheren Transport der Einzel­blätter 3 bzw. 3a sicherzustellen, sind mindestens je ein Saugelement 23 am Greifelement 18 und ein weiteres Saug­element 24 unmittelbar neben dem Greifelement 18 jeweils am Umfang 25 der Ablegewalze 8, 9 angeordnet. Ein weite­res Saugelement 26 befindet sich unmittelbar neben sowie in Laufrichtung der Ablegewalzen 8, 9 hinter jeder Knick- und Falzschneide 16, 20 und 21. Alle Saugelemente 23, 24 und 26 sind in der Kontur der Ablegewalzen 8, 9 befind­liche Saugöffnungen, zu denen einzelne, jeweils gesondert ansteuerbare Saugkanäle 27 in den Greifelementen 18 sowie Saugkanäle 28 und 29 in den Ablegewalzen 8, 9 führen. Ober ein Saugluft-Steuerventil 30 (Fig. 3 - 5) wird in den Saugkanälen 27 - 29 der beiden Ablegewalzen 8, 9 der­art im Takt Unterdruck erzeugt bzw. wieder aufgehoben, daß sich die Einzelblätter 3 und 3a in der gewünschten Weise zu einem Stapel 2 ablegen. Diese Art der Saugluft­ansteuerung ist grundsätzlich bekannt und daher nicht Gegenstand der Erfindung.For guidance and to ensure safe transport of the individual sheets 3 or 3a, at least one suction element 23 is arranged on the gripping element 18 and another suction element 24 is arranged directly next to the gripping element 18 on the circumference 25 of the laying roller 8, 9. Another suction element 26 is located immediately next to and in the running direction of the laying rollers 8, 9 behind each articulated and folding cutter 16, 20 and 21. All suction elements 23, 24 and 26 are suction openings located in the contour of the laying rollers 8, 9, to which individual suction channels 27, each of which can be controlled separately, in the gripping elements 18 and suction channels 28 and 29 in the laying rollers 8, 9 lead. About a suction air control valve 30 (Fig. 3-5) is generated in the suction channels 27-29 of the two laying rollers 8, 9 in such a cycle vacuum or canceled again that the single sheets 3 and 3a in the desired manner to form a stack 2 put down. This type of suction air control is known in principle and is therefore not the subject of the invention.

Das Greifelement 18 ist in einer zum Umfang 25 hin offenen Ausnehmung 31 der Ablegewalze 8, 9 angeordnet. Es ist schwenkbar gelagert und besitzt die Form einer Klappe, die an ihrem freien Ende ein Klemmstück 32 mit einer Klemmfläche 33 aufweist. Bezogen auf die Drehrich­tung der Ablegewalzen 8, 9 sind die Klemmflächen 33 an den Klemmstücken jeweils nachlaufend angeordnet. Damit die Greifelemente 18 wirksam sein können, ist ihren Klemmflächen 33 jeweils eine Gegenfläche in Form einer an der Ablegewalze 8, 9 starr angeordneten Anlagefläche 24 zugeordnet. Bei geöffnetem Greifelement 18 befindet sich der Greifspalt 17 jeweils zwischen dem Klemmstück 32 bzw. seiner Klemmfläche 33 und der Anlagefläche 34 an der Ablegewalze 8, 9.The gripping element 18 is arranged in a recess 31 of the laying roller 8, 9 which is open towards the periphery 25. It is pivotally mounted and has the shape of a flap which has a clamping piece 32 with a clamping surface 33 at its free end. Relative to the direction of rotation of the laying rollers 8, 9, the clamping surfaces 33 are arranged in a trailing manner on the clamping pieces. So that the gripping elements 18 can be effective, their clamping surfaces 33 are each assigned a counter surface in the form of a contact surface 24 rigidly arranged on the depositing roller 8, 9. When the gripping element 18 is open, the gripping gap 17 is located in each case between the clamping piece 32 or its clamping surface 33 and the contact surface 34 on the laying roller 8, 9.

Wie Figur 2 ferner zeigt, ist das Greifelement 18 auf einer Schwenkachse 35 angeordnet, die zur Steuerung der Schwenkbewegung einen Steuerhebel 36 aufweist. Der Steuerhebel 36 trägt eine Führungsrolle 37 und ferner ist eine stationär angeordnete Steuerkurve 38 vorgesehen, mit deren Hilfe die Schwenkbewegungen der Schwenkachse 35 bzw. des Greifelementes 18 zwangsgesteuert werden. Die Steuerkurve 38 befindet sich schließlich an einem Kurven­träger 39, der ausserhalb der Ablegewalzen 8, 9 angeord­net ist (Fig. 3).As FIG. 2 also shows, the gripping element 18 is arranged on a pivot axis 35 which is used to control the Pivotal movement has a control lever 36. The control lever 36 carries a guide roller 37 and a stationary control cam 38 is also provided, with the aid of which the pivoting movements of the pivot axis 35 or the gripping element 18 are positively controlled. The control cam 38 is finally located on a cam carrier 39 which is arranged outside the depositing rollers 8, 9 (FIG. 3).

Wie die Figuren ferner zeigen, führt jeder Saugluftkanal 27 von der in der Mantelfläche 40 jeder Ablegewalze 8, 9 befindlichen Saugöffnung durch das jeweilige Greifele­ment 18 und sodann durch dessen Schwenkachse 35 zu dem Saugluft-Steuerventil 30. Hierzu befindet sich eine Bohrung 41 in jeder Schwenkachse 35. Durch weitere Bohrungen 42 und 43 sind die anderen Saugkanäle 28 und 29 mit dem Saugluft-Steuerventil 30 bzw. seiner rotieren­den Steuerscheibe 44 verbunden. Innerhalb der Steuer­scheibe 44 stehen die Bohrungen 41, 42 und 43 mit ihnen zugeordneten Steuerfenstern 41′, 42′ und 43′ in luftlei­tender Verbindung. Dabei verlaufen die Bohrungen 42 und 43 zwischen dem eigentlichen Walzenkörper und der Steuer­scheibe 44 in ihnen zugeordneten Verlängerungsstücken 42˝ und 43˝.As the figures also show, each suction air duct 27 leads from the suction opening located in the outer surface 40 of each laying roller 8, 9 through the respective gripping element 18 and then through its pivot axis 35 to the suction air control valve 30. For this purpose there is a bore 41 in each pivot axis 35. The other suction channels 28 and 29 are connected to the suction air control valve 30 or its rotating control disk 44 through further bores 42 and 43. Within the control disc 44, the bores 41, 42 and 43 are associated with control windows 41 ', 42' and 43 'in an air-conducting connection. The bores 42 and 43 run between the actual roller body and the control disk 44 in extension pieces 42 zugeordneten and 43˝ assigned to them.

Neben der rotierenden Steuerscheibe 44 weist das Saug­luft-Steuerventil 30 eine stationäre Steuerscheibe 45 auf, in der sich Saugluft-Steuerkanäle 47, 58 und 59 und Kanäle 471 und 58′ für den atmosphärischen Druckausgleich befinden. Die Saugluft-Steuerkanäle 47, 58 und 59 sind mittels Saugstutzen 46 und 46′ mit einer in den Figuren nicht dargestellten Saugluftquelle verbunden. Die beiden Steuerscheiben 44 und 45 bewirken bei Drehung der Steuer­scheibe 44 die taktmäßige Erzeugung und Aufhebung der Saugluft, wobei sich deren Steuerfenster 41′, 42′ und 43′ an den Steuerkanälen 47 und 47′ bzw. 58, 58′ und 59, 58′ vorbeibewegen.In addition to the rotating control disc 44, the suction air control valve 30 has a stationary control disc 45 in which there are suction air control channels 47, 58 and 59 and channels 471 and 58 'for atmospheric pressure compensation. The suction air control channels 47, 58 and 59 are by means of suction nozzle 46 and 46 'connected to a suction air source, not shown in the figures. The two control disks 44 and 45 cause the cyclical generation and cancellation of the suction air when the control disk 44 rotates, the control window 41 ', 42' and 43 'of the control channels 47 and 47' and 58, 58 'and 59, 58' move past.

Das Saugluft-Steuerventil 30 ist konzentrisch mittels eines Lagers 30′ (Fig. 4) zur Antriebs- und Lagerwelle 48 der Ablegewalze 8, 9 angeordnet und mit Hilfe eines Bolzens 49 drehfest am Maschinengestellt 15 gesichert (Fig. 3). Zur Lagerung der Antriebs- und Lagerwelle 48 im Maschinengestell 15 dienen Kugellager 50 und zum An­trieb ist ein Zahnrad 51 vorgesehen, wie ebenfalls au Figur 3 hervorgeht.The suction air control valve 30 is arranged concentrically by means of a bearing 30 '(Fig. 4) to the drive and bearing shaft 48 of the laying roller 8, 9 and secured in rotation with the help of a bolt 49 on the machine frame 15 (Fig. 3). Ball bearings 50 are used for mounting the drive and bearing shaft 48 in the machine frame 15 and a gear 51 is provided for driving, as can also be seen in FIG. 3.

Das Greifelement 18 bzw. sein Schwenk- und Steuerhebel 36 ist von einer Feder 52 beaufschlagt, die das Greifele­ment 18 in die Schließstellung drückt. Zum Öffnen des Greifelementes 18 dient die Steuerkurve 38, welche über die Führungsrolle 37 und den Steuerhebel 36 das Greifele­ment 18 mit seinem Klemmstück 32 in die Öffnungslage ver­schwenkt, wenn sich das Greifelement 18 der einen Ablege­walze 8 bzw. 9 und die Knick- und Falzschneide 16 der je­weils anderen Ablegewalze 8 bzw. 9 im Bereich des Walzen­spaltes 57 bzw. seiner engsten Stelle befinden, wie dies in Figur 2 dargestellt ist. Nach dem Öffnen des Walzen­spaltes 17 muß dieser sehr schnell wieder geschlossen werden. Der das Öffnen bewirkende Teil der Steuerkurve 38 erstreckt sich nur über ein relativ kurzes Bogenstück im Bereich des Walzenspaltes 57 und der seitlichen, obe­ren Kante des Stapels 2, wie dies auch in Figur 2 darge­stellt ist.The gripping element 18 or its pivoting and control lever 36 is acted upon by a spring 52 which presses the gripping element 18 into the closed position. To open the gripping element 18, the control cam 38 is used, which, via the guide roller 37 and the control lever 36, pivots the gripping element 18 with its clamping piece 32 into the open position when the gripping element 18 of the one laying roller 8 or 9 and the folding and folding cutter 16 the other depositing roller 8 or 9 are in the area of the nip 57 or its narrowest point, as shown in Figure 2. After opening the nip 17, it must be closed again very quickly. The part of the control cam 38 which causes the opening extends only over a relatively short arc in the area of the roller gap 57 and the lateral, upper edge of the stack 2, as is also shown in FIG. 2.

Die Lagerung der Ablegewalze 8, 9 im Maschinengestell 15 erfolgt gemäß Figur 3 weitgehend symmetrisch. Gleiches gilt auch für die Saugluftsteuerung, so daß zweckmäßiger­weise je ein Saugluft-Steuerventil 30 axial an jedem Ende der Ablegewalze 8, 9 angeordnet ist (Fig. 3).The storage of the laying roller 8, 9 in the machine frame 15 takes place largely symmetrically according to FIG. The same also applies to the suction air control, so that one suction air control valve 30 is expediently arranged axially at each end of the laying roller 8, 9 (FIG. 3).

Die Darstellung in Figur 3 ist schließlich der besseren Übersicht wegen etwas vereinfacht, da z.B. Steuerhebel 36 und Führungsrollen 37 nicht an allen Schwenkachsen 35 dargestellt sind, obwohl ihre Anordnung dort jeweils zwingend notwendig ist.The representation in Figure 3 is finally somewhat simplified for the sake of clarity, since e.g. Control levers 36 and guide rollers 37 are not shown on all pivot axes 35, although their arrangement there is absolutely necessary.

An ihrem Umfang 25 weisen die beiden Ablegewalzen 8, 9 jeweils axial nebeneinander mehrere Greifelement 18 und Knick- und Falzschneiden 16 auf. Dazwischen befinden sich Rillen bzw. Nuten 53, so daß die Ablegewalzen 8, 9 im Er­gebnis leicht kammförmig sind. Der Greifspalt 17 er­streckt sich radial. Gleiches gilt für die Klemmflächen 33 und die Anlageflächen 34 an den Ablegewalzen 8, 9. Die Knick- und Falzschneiden 16, 20 und 21 sind mittels elastischer Halterungen 60 in den Ablegewalzen 8, 9 ge­lagert.On their circumference 25, the two laying rollers 8, 9 each have a plurality of gripping elements 18 and kinking and folding blades 16 axially next to one another. In between there are grooves or grooves 53, so that the laying rollers 8, 9 are slightly comb-shaped as a result. The gripping gap 17 extends radially. The same applies to the clamping surfaces 33 and the contact surfaces 34 on the laying rollers 8, 9. The kinking and folding blades 16, 20 and 21 are mounted in the laying rollers 8, 9 by means of elastic holders 60.

Bei dem in den Figuren 1 und 2 dargestellten Ausführungs­beispiel wird jeder Ablegewalze 8 bzw. 9 jeweils eine durch Trennschnitte vorbereitete Materialbahn zugeführt bzw. es werden Einzelblätter 3, 3a zugeführt. Hierbei ist in beiden Ablegewalzen 8, 9 hinter den Knick- und Falz­schneiden 16, 20, 21 jeweils ein Saugelement 26 notwen­dig.In the exemplary embodiment shown in FIGS. 1 and 2, each laying roller 8 or 9 is fed a material web prepared by separating cuts or single sheets 3, 3a are fed. In this case, a suction element 26 is required in each of the two laying rollers 8, 9 behind the kinking and folding blades 16, 20, 21.

Gemäß dem in Figur 6 prinzipmäßig dargestellten Ausfüh­rungsbeispiel besteht aber auch die möglichkeit, die bei­den vorbereiteten Materialbahnen 6 und 7 bzw. ihre Ein­zelblätter vor Erreichen der Ablegewalzen 8, 9 gemeinsam auf eine Walze 14 zu führen und bereits hier eine doppel­lagige Bahn, bestehend aus Einzelblättern oder aus per­forierten Materialbehnen zu bilden. Die so gewonnene, doppellagige Bahn wird bei dieser Ausführungsform nur von einer Ablegewalze 8 übernommen und dem Walzenspalt 57 zugeführt. Dafür muß diese Ablegewalze 8 mit Saugelemen­ten 26 hinter den Knick- und Falzschneiden 16, 20, 21 ausgerüstet sein. Die andere Ablegewalze 9 benötigt in diesem Fall keine Saugelemente hinter ihren Knick- und Falzschneiden 16, 20 und 21.According to the embodiment shown in principle in FIG. 6, there is also the possibility of leading the two prepared material webs 6 and 7 or their individual sheets together onto a roller 14 before reaching the depositing rollers 8, 9, and already here a double-layer web consisting of single sheets or to form from perforated material trays. The double-layered web obtained in this way is only taken over by a depositing roller 8 in this embodiment and fed to the roller gap 57. For this purpose, the laying roller 8 must be equipped with suction elements 26 behind the folding and folding blades 16, 20, 21. In this case, the other depositing roller 9 does not require any suction elements behind its folding and folding blades 16, 20 and 21.

Beide Ausführungsbeispiele arbeiten nach dem gleichen Verfahren. Diese besteht im Ergebnis darin, daß jeweils das eine Einzelblatt mit der Stelle des zu bildenden Falzes und jeweils zwei andere Einzelblätter mit ihren Enden an derselben Stelle unter seitlicher Führung aus einer ursprünglichen Bewegungsrichtung gedrückt und so­dann dort unter Falzbildung fixiert werden, wobei jeweils die Enden des einen Einzelblattes im Falz des anderen Einzelblattes liegen und daß Einzelblätter mechanisch und mit Saugluft fixiert werden.Both exemplary embodiments work according to the same method. The result of this is that one single sheet with the location of the fold to be formed and two other single sheets with their ends pressed at the same point under lateral guidance from an original direction of movement and then fixed there with the formation of folds, the ends of the a single sheet lies in the fold of the other single sheet and that single sheets are fixed mechanically and with suction air.

Claims (10)

1) Vorrichtung zum Herstellen von U- bzw. zick-zack-­förmig gestalteten und überlappend ineinander gesta­pelten Einzelblättern bzw. Tüchern, insbesondere aus saugfähigem Papier mit Hilfe von zwei Rollensätzen für zwei Materialbahnen, wobei zwei an dem zu bilden­den Stapel angeordnete und bei der Stapelbildung so­wie Falzbildung zusammenwirkende Ablegewalzen und für jede Materialbahn mindestens je eine Messerwalze mit einem Trennmesser sowie Transport- und Zugwalzen so­wie mindestens eine Umlenkwalze vorgesehen sind, die in einem Maschinenrahmen angeordnet sowie angetrieben sind, dadurch gekennzeichnet, daß jede Ablegewalze (8, 9) mindestens eine Knick- und Falzschneide (16, 20, 21) und mindestens ein bewegliches Greifelement 18 aufweist und daß ferner je mindestens ein Saugelement (23, 24, 26) am Greifelement (18) und neben dem Greifelement (18) bzw. der Knick- und Falzschneide (16, 20, 21) jeweils am Umfang (25) der Ablegewalze (8, 9) angeordnet ist.1) Device for producing U-shaped or zigzag-shaped and overlapping stacked single sheets or sheets, in particular made of absorbent paper with the aid of two sets of rollers for two material webs, two arranged on the stack to be formed and during stack formation as well as fold-forming depositing rollers and for each material web at least one knife roller with a separating knife as well as transport and pull rollers and at least one deflection roller are provided, which are arranged and driven in a machine frame, characterized in that each depositing roller (8, 9) has at least one kink - And folding blade (16, 20, 21) and at least one movable gripping element 18 and that further each have at least one suction element (23, 24, 26) on the gripping element (18) and next to the gripping element (18) or the folding and folding blade (16, 20, 21) is arranged on the circumference (25) of the laying roller (8, 9). 2) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Greifelement (18) in einer zum Umfang (25) der Ablegewalze (8,9) hin offenen Ausnehmung (31) an­geordnet ist.2) Device according to claim 1, characterized in that the gripping element (18) is arranged in a recess (31) which is open towards the circumference (25) of the laying roller (8, 9). 3) Vorrichtung nach Anspruch 1 und 2, dadurch gekenn­zeichnet, daß das Greifelement (18) eine schwenkbar gelagerte Klappe ist, die an ihrem freien Ende ein Klemmstück (32) mit einer Klemmfläche (33) aufweist und daß der Klemmfläche (33) ferner eine Gegenfläche in Form einer an der Ablegewalze (8, 9) starr ange­ordneten Anlagefläche (34) zugeordnet ist.3) Device according to claim 1 and 2, characterized in that the gripping element (18) is a pivotally mounted flap which has at its free end a clamping piece (32) with a clamping surface (33) and that the clamping surface (33) also one Mating surface in the form of a contact surface (34) rigidly arranged on the laying roller (8, 9) is assigned. 4) Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Greifelement (18) nahe seiner Klemmfläche (33) mindestens ein in der Mantelfläche (40) der Ablegewalze (8, 9) befindliches Saugelement (23) in Form einer Saugöffnung mit einem zugehörigen Saugkanal (27) aufweist.4) Device according to one of the preceding claims, characterized in that the gripping element (18) near its clamping surface (33) at least one in the lateral surface (40) of the laying roller (8, 9) located suction element (23) in the form of a suction opening with a associated suction channel (27). 5) Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mindestens ein Saugele­ment (26) bzw. eine Saugöffnung und ein zugehöriger Saugkanal (29) in Drehrichtung der Ablegewalze (8, 9) unmittelbar hinter der Knick- und Falzschneide (16, 20, 21) und ein Saugelement (24) bzw. eine Saug­öffnung und ein zugehöriger Saugkanal (28) nahe der das klappenförmige Greifelement (18) aufnehmenden Ausnehmung (31) angeorndet sind, wobei sich die Saug­elemente (24, 26) bzw. Saugöffnungen in der Mantel­fläche (40) der Ablegewalze (8, 9) befinden.5) Device according to one of the preceding claims, characterized in that at least one suction element (26) or a suction opening and an associated suction channel (29) in the direction of rotation of the laying roller (8, 9) immediately behind the folding and folding blade (16, 20th , 21) and a suction element (24) or a suction opening and an associated suction channel (28) are arranged near the recess (31) receiving the flap-shaped gripping element (18), the suction elements (24, 26) or suction openings being located in the Shell surface (40) of the laying roller (8, 9). 6) Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Greifelement (18) auf einer Schwenkachse (35) angeordnet ist, und daß diese zur Steuerung der Schwenkbewegung einen Steuerhebel (36) aufweist, dem eine stationär angeordnete Steuer­kurve (38) ausserhalb der Ablegewalze (8, 9) zugeord­net ist.6) Device according to one of the preceding claims, characterized in that the gripping element (18) is arranged on a pivot axis (35), and that this has a control lever (36) for controlling the pivoting movement, which has a stationary control cam (38) outside the laying roller (8, 9) is assigned. 7) Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schwenkachse (35) des Greifelementes (18) eine Längsbohrung (41) aufweist, die mit dem Saugluftkanal (27) in luftleitender Ver­bindung steht.7) Device according to one of the preceding claims, characterized in that the pivot axis (35) of the gripping element (18) has a longitudinal bore (41) which is in air-conducting connection with the suction air duct (27). 8) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jeweils ein Rollensatz (4, 5) mit einer Ablege­walze (8 bzw. 9) und mit mindestens je einer Messer-, Transport-, Zug- und/oder Umlenkwalze (11, 13, 14) für jede Materialbahn (6, 7) bzw. ihre Ein­zelblätter (3) vorgesehen ist und daß die Material­bahnen (6, 7) bzw. ihre Einzelblätter (3) am Walzen­spalt (57) der beiden Ablegewalzen (8, 9) zueinander versetzt zusammengeführt sind.8) Device according to claim 1, characterized in that in each case a set of rollers (4, 5) with a laying roller (8 or 9) and with at least one knife, transport, pull and / or deflection roller (11, 13, 14) is provided for each material web (6, 7) or its individual sheets (3) and that the material webs (6, 7) or their individual sheets (3) are offset from one another at the nip (57) of the two laying rollers (8, 9) are merged. 9) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Materialbahnen (6, 7) jeweils von einer Messerwalze (11) und mindestens einer Transport- und/­oder Zugwalze (13) kommend auf einer gemeinsamen Um­lenkwalze (14) zueinander versetzt zusammengeführt und sodann gemeinsam auf die eine der beiden Ablege­walzen (8) geführt sind und von dieser übernommen werden.9) Device according to claim 1, characterized in that the material webs (6, 7) coming from a knife roller (11) and at least one transport and / or pull roller (13) coming together on a common deflecting roller (14) staggered together and then are guided jointly onto one of the two laying rollers (8) and are taken over by this. 10) Verfahren zum Herstellen von U- bzw. zick-zack-förmig gefaltenen und in einem Stapel überlappend und inein­ander greifend abgelegten Einzelblättern, dadurch ge­kennzeichnet, daß die Einzelblätter versetzt einem Greifspalt zugeführt werden, daß jeweils das eine Einzelblatt mit der Stelle des zu bildenden Falzes und die anderen Einzelblätter mit ihren Enden in den Greifspalt gedrückt und sodann dort unter Falzbildung des einen Einzelblattes durch seitlichen Druck fixiert werden, wobei die Enden der beiden Einzel­blätter im Falz des anderen Einzelblattes liegen und daß die Fixierung der Einzelblätter mechanisch und mit Saugluft erfolgt.10) Method for producing U-shaped or zig-zag folded and in a stack overlapping and interlocking stored single sheets, characterized in that the single sheets are fed offset to a gripping gap, that in each case a single sheet with the place to be formed Fold and the other single sheets with their ends pressed into the gripping gap and then fixed there with the formation of a single sheet fold by lateral pressure, the ends of the two single sheets lying in the fold of the other single sheet and that the fixing of the single sheets takes place mechanically and with suction air.
EP90111612A 1989-07-15 1990-06-20 Method and device for production of paperstacks Expired - Lifetime EP0408912B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3923436 1989-07-15
DE3923436A DE3923436A1 (en) 1989-07-15 1989-07-15 METHOD AND DEVICE FOR PRODUCING PAPER PACKS

Publications (2)

Publication Number Publication Date
EP0408912A1 true EP0408912A1 (en) 1991-01-23
EP0408912B1 EP0408912B1 (en) 1994-08-24

Family

ID=6385109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111612A Expired - Lifetime EP0408912B1 (en) 1989-07-15 1990-06-20 Method and device for production of paperstacks

Country Status (4)

Country Link
US (1) US5147273A (en)
EP (1) EP0408912B1 (en)
JP (1) JPH0346964A (en)
DE (2) DE3923436A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0982255A1 (en) * 1998-08-21 2000-03-01 M T C - Macchine Trasformazione Carta S.r.l. Interfolding method of sheet material and machine for carrying out such method
CN103601030A (en) * 2013-10-14 2014-02-26 全利机械股份有限公司 paper folding wheel module with combined bearing device
CN105016131A (en) * 2015-06-11 2015-11-04 全利机械股份有限公司 Fiber product folding device
CN106429603A (en) * 2016-11-23 2017-02-22 江西欧克科技有限公司 Specification-replaceable facial tissue folding machine
CN111591824A (en) * 2020-05-14 2020-08-28 杨传萌 Paper folding machine
IT202300001731A1 (en) * 2023-02-02 2024-08-02 Valmet Tissue Converting S R L MACHINE FOR THE PRODUCTION OF HIGH PRODUCTIVITY PAPER LAMINAR PRODUCT PACKS AND RELATED PRODUCTION METHOD

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6176068B1 (en) 1998-04-23 2001-01-23 Bki Holding Corporation Packaging a strip of material in layers with intervening splices
US6321511B1 (en) 1988-05-20 2001-11-27 Bki Holding Corporation Packaging a strip of material with compression to reduce volume
JP2575247B2 (en) * 1991-11-01 1997-01-22 克 米山 Method and apparatus for multiple folding of single leaf web
DE69430755T2 (en) * 1993-10-12 2003-01-30 Kimberly-Clark Australia Pty. Ltd., Milsons Point METHOD AND DEVICE FOR PRODUCING A STACK OF TOWELS OR HANDKERCHIEF
DE4419989C2 (en) * 1994-06-08 1997-10-02 Winkler Duennebier Kg Masch Method and device for stacking folded sheets
EP0729910B1 (en) * 1995-03-03 2002-07-10 Winkler + Dünnebier Aktiengesellschaft Cylinder for a folding apparatus and also a folding apparatus
US6371902B1 (en) * 1996-09-30 2002-04-16 Winkler & Duennebier Maschinenfabrik Und Eisengiesserei Gmbh Method and apparatus for forming score lines on pre-cut envelope blanks
US6729471B2 (en) 1997-06-16 2004-05-04 Bki Holding Corporation Packaging a strip of material with compression to reduce volume
US5842964A (en) * 1997-07-01 1998-12-01 Fred Huber & Associates Sheet folding apparatus with vacuum grip
US6263814B1 (en) 1997-07-08 2001-07-24 Bki Holding Corporation Strip of material with splices and products formed therefrom
US5899447A (en) * 1997-09-02 1999-05-04 The Procter & Gamble Company Apparatus for stacking pop-up towels
US6336307B1 (en) 1997-10-09 2002-01-08 Eki Holding Corporation Method of packaging a strip of material for use in cutting into sheet elements arranged end to end
FI110681B (en) 1998-01-02 2003-03-14 Bki Holding Corp Procedure for wrapping a web
US6213346B1 (en) 1998-06-29 2001-04-10 Kimberly-Clark Worldwide, Inc. Interfolded dispenser napkins
ES2318867T3 (en) * 1998-08-21 2009-05-01 M T C - Macchine Trasformazione Carta S.R.L. INTERPLOITED METHOD OF NON-PERMEABLE SHEET MATERIAL OR NOT ENOUGH AIR-PERMEABLE AND MACHINE TO CARRY OUT SUCH METHOD.
US6165116A (en) * 1999-01-12 2000-12-26 Green Bay Engineering Corp. Method and apparatus for creating a discontinuity in a stack interfolded sheets
US6293075B1 (en) 1999-03-08 2001-09-25 Bki Holding Corporation Packaging a strip of material
US6321512B1 (en) 1999-03-08 2001-11-27 Bki Holding Corporation Method of packaging a strip of material
US6712746B1 (en) 1999-05-06 2004-03-30 Fpna Acquisition Corporation Discharge and transfer system for interfolded sheets
US6296601B1 (en) * 1999-07-13 2001-10-02 C.G. Bretting Manufacturing Company, Inc. Vacuum assisted roll apparatus and method
US6440053B1 (en) * 2000-01-11 2002-08-27 William P. Niedermeyer Apparatus for folding pluralities of product webs advancing along parallel paths
US6565500B1 (en) 2000-08-08 2003-05-20 The Procter & Gamble Company Method for batch production of stacks of folded sheets
DK1377512T3 (en) * 2001-03-23 2007-05-29 Bki Holding Corp Packing a strip of material of varying width
US20030092551A1 (en) * 2001-11-14 2003-05-15 Roland Boss Methods and apparatus for scoring and trimming imaged sheet media
JP3607901B2 (en) 2002-04-26 2005-01-05 ムネカタ株式会社 Flame retardant for thermoplastic resin
US6689038B2 (en) * 2002-06-10 2004-02-10 Fpna Acquisition Corporation Method and apparatus for interrupting interfolded sheets created by a lapping interfolder
US7008364B2 (en) 2002-09-27 2006-03-07 C.G. Bretting Manufacturing Company, Inc. Sheet folding apparatus and method
US11230453B2 (en) * 2003-02-18 2022-01-25 Körber Tissue Fold S.R.L. Roller for conveying a web or sheet of paper in paper converting machines and conveying method thus obtained
EP1477447B1 (en) * 2003-05-15 2006-11-22 M T C - Macchine Trasformazione Carta S.r.l. Folding roller and folding method for paper converting machines
US6942610B2 (en) * 2003-05-28 2005-09-13 Specialty Systems Advanced Machinery, Inc. Web folding machine
US7771337B2 (en) * 2003-09-30 2010-08-10 Fabio Perini S.P.A. Self-centering tucker assembly for a folding roll
US20050079310A1 (en) * 2003-10-09 2005-04-14 Germain Patrick C. St. Folded roll product and method and apparatus for making and using the same
CA2484888C (en) * 2003-10-16 2010-08-31 Fpna Acquisition Corporation High volume adjustable vacuum assembly for a roll in an interfolding machine
ITFI20040144A1 (en) * 2004-06-25 2004-09-25 Perini Fabio Spa BENDING MACHINE WITH SUCTION VEHICLES TO FOLD A CONTINUOUS TAPE MATERIAL AND RELATED BENDING METHOD
US7824752B2 (en) * 2005-06-30 2010-11-02 Express Card And Label Co., Inc. Fan-folded web of pressure-sensitive labels
US7458927B2 (en) * 2005-10-07 2008-12-02 C.G. Bretting Manufacturing Co., Inc. Interfolder with pre-forming transfer roll
US7452321B2 (en) * 2005-10-07 2008-11-18 C.G. Bretting Manufacturing Company, Inc. High speed interfolder
ATE443015T1 (en) * 2006-02-28 2009-10-15 Mtc Macchine Trasformazione MODULAR INTERFOLDING MACHINE SUITABLE FOR EASY FORMAT CHANGES
ITMI20060961A1 (en) * 2006-05-16 2007-11-17 Omet Srl IMPROVED DEVICE FOR FOLDING FLEXIBLE MATERIAL
US7717839B2 (en) * 2008-04-04 2010-05-18 C.G. Bretting Manufacturing Co., Inc. Multi-path interfolding apparatus
US20100261594A1 (en) * 2009-04-08 2010-10-14 C.G. Bretting Manufacturing Co., Inc. Resilient tucker element for interfolder folding rolls
IT1394482B1 (en) * 2009-06-04 2012-07-05 Tissuewell S R L DEVICE FOR HANDLING FINGERS INTO AN INTERFOLIATRIC MACHINE
GB2475334B (en) * 2009-11-17 2016-02-03 Intelligent Energy Ltd Plate processing
CN102009869B (en) * 2009-12-15 2013-03-06 吴兆广 Paper suction method of folder for V-shaped box drawing type facial tissues and paper suction device using in same
US8696537B2 (en) 2010-02-16 2014-04-15 C.G. Bretting Manufacturing Co., Inc. Single-fold interfolding machine with ability to produce off-folded towel or tissue products
US20120165174A1 (en) * 2010-12-23 2012-06-28 C.G. Bretting Manufacturing Co., Inc. Single web single-fold apparatus and method
US9371209B2 (en) 2012-05-01 2016-06-21 C.G. Bretting Manufacturing Co., Inc. Single path single web single-fold interfolder and methods
TWI480220B (en) * 2013-11-28 2015-04-11 Chan Li Machinery Co Ltd The Construction of Combined Folding Wheel Module
CN103910229B (en) * 2014-03-14 2017-01-04 吴兆广 One way of life paper using automatic layboy divides pile segregation apparatus and method thereof automatically
DE102014212040A1 (en) * 2014-06-24 2015-12-24 Faubel U. Co. Nachfolger Gmbh Folded product and method of making the same
US10449746B2 (en) 2016-06-27 2019-10-22 C. G. Bretting Manufacturing Co., Inc. Web processing system with multiple folding arrangements fed by a single web handling arrangement
IT201800002342A1 (en) * 2018-02-02 2019-08-02 Perini Fabio Spa INTERLIFTING MACHINE WITH SEPARATORY FINGERS ADJACENT TO THE RESPECTIVE INTERFOLIATING ROLLS
IT201900001579A1 (en) * 2019-02-04 2020-08-04 Mtc Macch Trasformazione Carta S R L FOLDING UNIT, OR INTERFOLIATING, OF PAPER SHEETS FOR A PAPER TRANSFORMATION MACHINE
CN111924628A (en) * 2020-07-15 2020-11-13 佛山市南海铭阳机械制造有限公司 Folding stick of drawing type cotton soft towel machine
IT202100010283A1 (en) * 2021-04-22 2022-10-22 Koerber Tissue Fold S R L UNIT FOR FOLDING, OR INTERFOLDING, SHEETS OF PAPER IN A PAPER CONVERTING MACHINE
CN114455380B (en) * 2022-02-17 2024-03-26 杭州临安华晟日用品有限公司 Folding and slitting device for non-woven fabrics and paper products

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE178663C (en) *
DE1804082A1 (en) * 1968-04-17 1969-10-23 Otto Bay Machine for folding foil material in zigzag breaks
EP0234281A2 (en) * 1986-02-18 1987-09-02 HOBEMA Maschinenfabrik Hermann H. Raths GmbH &amp; Co. KG Device for producing and piling sections of paper, cellulosic, fibrous or like webs having single or multiple transverse folds
US4778441A (en) * 1987-06-16 1988-10-18 C.G. Bretting Manufacturing Co., Inc. Interfolding machinery improvement

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE234281C (en) *
US843781A (en) * 1904-12-31 1907-02-12 Seth Wheeler Apparatus for cutting, folding, and interfolding sheets or units.
US1053914A (en) * 1909-07-17 1913-02-18 Frank H Hoberg Interfolding-machine.
US1561908A (en) * 1924-08-16 1925-11-17 Cannard Interfolding machine
US1761517A (en) * 1929-06-12 1930-06-03 Peter J Christman Folding or interfolding machine
US1966885A (en) * 1931-03-19 1934-07-17 Goss Printing Press Co Ltd Folding mechanism
DE636666C (en) * 1934-09-29 1936-10-14 August Koenig Dr Ing Combined cylinder pre-folding and zigzag folding devices for producing alternately folded form strips or the like from paper webs
US2092952A (en) * 1934-11-26 1937-09-14 Samuel J Campbell Paper interfolding machine
US2872186A (en) * 1956-07-10 1959-02-03 Levey Fred K H Co Inc Folder for printing presses
US3363896A (en) * 1965-08-04 1968-01-16 Thomas W. Mckindary Methods and apparatus for zig-zag folding a web
US3490762A (en) * 1967-09-07 1970-01-20 Paper Converting Machine Co Web-lapping machine
US3572681A (en) * 1969-06-03 1971-03-30 Paper Converting Machine Co Apparatus for interfolding webs
AT330561B (en) * 1973-08-03 1976-07-12 Bunzl & Biach Ag METHOD AND APPARATUS FOR MANUFACTURING A STACKING PACK OF PAPER TOWELS FOLDED INTO A ZIG-ZAG
DE2533434A1 (en) * 1975-07-25 1977-02-10 Kawanoe Zoki K K Rapid continuous web folding roller system - has suction openings on successive rollers laying web in zigzag
US4070014A (en) * 1975-07-28 1978-01-24 Kawanoe Zoki Kabushiki Kaisha Web folding apparatus
DD137795A3 (en) * 1976-12-23 1979-09-26 Klaus Hertrich FOLDING CYLINDER FOR ROTATION FOLDER
US4270744A (en) * 1979-06-15 1981-06-02 C. G. Bretting Mfg. Co. Inc. Tuckers on mechanical folding rolls
DD153473A3 (en) * 1979-12-27 1982-01-13 Oskar Birke DEVICE FOR CONTROLLING THE FOLDING FLAPS OF A FOLDING CYLINDER
US4494741A (en) * 1981-03-20 1985-01-22 John M. Rudolf Tissue cutting and interfolding apparatus for Z webs
US4691908A (en) * 1986-01-06 1987-09-08 Paper Converting Machine Company Apparatus for interfolding
DE3708016A1 (en) * 1987-03-12 1988-09-22 Womako Masch Konstr Device for the zig-zag folding of a material web
US4765604A (en) * 1987-04-17 1988-08-23 C. G. Bretting Manufacturing Company Resilient creaser
US4824426A (en) * 1987-05-11 1989-04-25 Paper Converting Machine Company Method and apparatus for interfolding webs
US4917665A (en) * 1987-06-16 1990-04-17 C. G. Bretting Manufacturing Co. Inc. Bedroll interfolding machinery improvement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE178663C (en) *
DE1804082A1 (en) * 1968-04-17 1969-10-23 Otto Bay Machine for folding foil material in zigzag breaks
EP0234281A2 (en) * 1986-02-18 1987-09-02 HOBEMA Maschinenfabrik Hermann H. Raths GmbH &amp; Co. KG Device for producing and piling sections of paper, cellulosic, fibrous or like webs having single or multiple transverse folds
US4778441A (en) * 1987-06-16 1988-10-18 C.G. Bretting Manufacturing Co., Inc. Interfolding machinery improvement

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0982255A1 (en) * 1998-08-21 2000-03-01 M T C - Macchine Trasformazione Carta S.r.l. Interfolding method of sheet material and machine for carrying out such method
CN103601030A (en) * 2013-10-14 2014-02-26 全利机械股份有限公司 paper folding wheel module with combined bearing device
CN103601030B (en) * 2013-10-14 2016-08-10 全利机械股份有限公司 Origami wheel module with combined bearing arrangement
CN105016131A (en) * 2015-06-11 2015-11-04 全利机械股份有限公司 Fiber product folding device
CN106429603A (en) * 2016-11-23 2017-02-22 江西欧克科技有限公司 Specification-replaceable facial tissue folding machine
CN106429603B (en) * 2016-11-23 2017-10-10 江西欧克科技有限公司 A kind of face tissue folding machine of replaceable specification
CN111591824A (en) * 2020-05-14 2020-08-28 杨传萌 Paper folding machine
IT202300001731A1 (en) * 2023-02-02 2024-08-02 Valmet Tissue Converting S R L MACHINE FOR THE PRODUCTION OF HIGH PRODUCTIVITY PAPER LAMINAR PRODUCT PACKS AND RELATED PRODUCTION METHOD

Also Published As

Publication number Publication date
EP0408912B1 (en) 1994-08-24
DE59006888D1 (en) 1994-09-29
JPH0346964A (en) 1991-02-28
DE3923436A1 (en) 1991-01-24
US5147273A (en) 1992-09-15

Similar Documents

Publication Publication Date Title
EP0408912A1 (en) Method and device for production of paperstacks
DE69836681T2 (en) A method of interfolding sheet material and apparatus for carrying out the method
DE2120903C3 (en) Device for folding webs into multiple folded individual products
EP0627310B1 (en) Folding apparatus and method for crosswise folding
DE3927422A1 (en) METHOD AND DEVICE FOR THE MANUFACTURE OF NUMBER OF PARTIAL PACKS
EP0977668B1 (en) Device for adjusting folding jaws
EP1105333B1 (en) Method and device for perforating material bands
DE102008033776A1 (en) Corrugating machine
EP0859733B1 (en) Process and device for producing multi-layered newspaper products with a tabloid section
DE602004006090T2 (en) FOLDING MACHINE FOR FOLDING A THROUGH RAIL MATERIAL AND FOLDING PROCESS
EP0931747B1 (en) Folder for a printing press
EP0243799A1 (en) Device for folding webs
WO1995018057A1 (en) Method and device for the production of a longitudinal fold
CH693985A5 (en) Vorrichtung und Verfahren zum Schneiden einer Materialbahn, insbesondere in einer Rotationsdruckmaschine.
EP0729910A2 (en) Cylinder for a folding apparatus and also a folding apparatus
DE2951427C2 (en)
EP0574745B1 (en) Device for separating piled sheets from synthetic material, paperbound or the like
DE3832595A1 (en) METHOD AND DEVICE FOR PRODUCING ZIG-ZAG-FOLDED CLOTHES
DE4119068C2 (en) Device for connecting two dryer groups of a paper machine
DE3030775C2 (en) Folder
AT501246A1 (en) CROSS-CUTTING DEVICE AND METHOD FOR RAIL MATERIAL
EP0234281A2 (en) Device for producing and piling sections of paper, cellulosic, fibrous or like webs having single or multiple transverse folds
DE3113951C2 (en) Method and device for the production of funnel-shaped filter inserts with opening aids
DE69810895T2 (en) Method and device for producing a package of folded articles and corresponding products
WO1992001620A1 (en) Guideway

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19910423

17Q First examination report despatched

Effective date: 19930324

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940826

REF Corresponds to:

Ref document number: 59006888

Country of ref document: DE

Date of ref document: 19940929

ET Fr: translation filed
ITF It: translation for a ep patent filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950615

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950619

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950629

Year of fee payment: 6

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960620

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19970228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050620